ISAR image enhancement based on MCPF and special narrow spectrum filter

Ali Cherif Abdelkader; Yong Wang

doi:10.1117/12.2502951

9 August 2018 ISAR image enhancement based on MCPF and special narrow spectrum filter

Ali Cherif Abdelkader, Yong Wang

Proceedings Volume 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018); 108063W (2018) https://doi.org/10.1117/12.2502951
Event: Tenth International Conference on Digital Image Processing (ICDIP 2018), 2018, Shanghai, China

Abstract

Inverse Synthetic Aperture Radar system provides high-resolution images of the observed targets with non-cooperative movement. The received signal can take the form of the multicomponent cubic phase signal, and the ISAR image can be generated by the parameters estimation of it. In the real situation, the amplitude of the received signal is varying during the time of observation because of the scatterers Migration Through Resolution Cells (MTRC) and this phenomenon cannot be neglected to get a well-focused ISAR image. In this study, we use the Modified Cubic Function (MCPF) to estimate the phase parameters of the echo and we propose a Special Narrow Spectrum Filter (SNSF) technique to estimate the time varying amplitude. The ISAR image can be enhanced based on the proposed technique ((MCPF plus SNSF)) compared with the previous version (MCPF plus constant amplitude). The experimental work proves the effectiveness of the proposed method.

Citation Download Citation

Ali Cherif Abdelkader and Yong Wang "ISAR image enhancement based on MCPF and special narrow spectrum filter", Proc. SPIE 10806, Tenth International Conference on Digital Image Processing (ICDIP 2018), 108063W (9 August 2018); https://doi.org/10.1117/12.2502951

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KEYWORDS

Image quality

Image enhancement

Detection and tracking algorithms

Fourier transforms

Optical filters

Radar

Doppler effect

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